LAS VEGAS — One Las Vegas shooting range sold ‘‘take a shot at love’’ packages that included 50 submachine gun rounds. Another offered wedding packages in which the bride and groom can pose with Uzis and ammunition belts. And a third invited lovebirds to renew their vows and shoot a paper cutout zombie in the face.

Never known for its understatement or good taste, Sin City is bucking the national trend of avoiding flippant gun promotions after the Newtown, Conn., elementary school shooting. Instead, it is embracing tourists’ newfound interest in big guns the only way it knows how: by going all in.

The newest crop of outlandish Valentine’s Day offers is no exception.

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Capitalizing on the state’s relaxed gun laws, shooting ranges offer an armory of military-grade weapons that aren’t accessible in other states. And because this is Las Vegas, the ranges also allow customers to destroy photographs of exes, make souvenir T-shirts full of holes, and shoot fully-automatic weapons in barely-there bachelor party man-kinis.

Some gun control advocates say the promotions trivialize the dangers of high-powered weapons.

‘‘These gun stores and shooting ranges offer bad puns in poor taste in their efforts to put a happy face on firearms, yet each day more than 86 Americans die from gun violence,’’ said Newtown native Josh Sugarmann, who is executive director of the Washington D.C.-based Violence Policy Center.